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FortiGuard LabsFG-IR-21-119

HistoryNov 02, 2021 - 12:00 a.m.

FortiWeb - Stack-Based Buffer Overflow vulnerability

2021-11-0200:00:00

FortiGuard Labs

www.fortiguard.com

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.002 Low

EPSS

Percentile

55.7%

JSON

A stack-based buffer overflow [CWE-121] vulnerability in FortiWeb may allow an unauthenticated attacker to overwrite the content of the stack and potentially execute arbitrary code by sending crafted HTTP requests with large request parameter values.

CPENameOperatorVersion
fortiwebeq6.4.0
fortiwebeq6.3.9
fortiwebeq6.3.8
fortiwebeq6.3.7
fortiwebeq6.3.6
fortiwebeq6.3.5
fortiwebeq6.3.4
fortiwebeq6.3.3
fortiwebeq6.3.2
fortiwebeq6.3.15

Name	Operator	Version
fortiweb	eq	6.4.0
fortiweb	eq	6.3.9
fortiweb	eq	6.3.8
fortiweb	eq	6.3.7
fortiweb	eq	6.3.6
fortiweb	eq	6.3.5
fortiweb	eq	6.3.4
fortiweb	eq	6.3.3
fortiweb	eq	6.3.2
fortiweb	eq	6.3.15

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9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.002 Low

EPSS

Percentile

55.7%

JSON

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